Stockholders' (Deficit) Equity - Additional Information (Detail) - USD ($)			1 Months Ended				3 Months Ended		11 Months Ended
	May 06, 2021	Nov. 04, 2019	Jan. 31, 2022	Aug. 31, 2021	Feb. 29, 2020	Nov. 30, 2019	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 16, 2022	Dec. 31, 2021
Equity [Line Items]
Common stock, shares authorized							225,000,000		225,000,000		150,000,000
Common stock, par value							$ 0.0001		$ 0.0001		$ 0.0001
Number of votes for each share of common stock							Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the Company’s stockholders.
Proceeds from issuance of common stock, net of commissions							$ 82,257,000	$ 0
Issuance of common stock, Value							$ 81,828,000
Preferred stock, shares outstanding							338,000		338,000		338,000
Non cash gains due to adjustment of warrant liability							$ 1,400,000
Issuance costs							$ 185,000	$ 0
Maximum [Member]
Equity [Line Items]
Common stock, shares authorized										450,000,000
Minimum [Member]
Equity [Line Items]
Common stock, shares authorized										225,000,000
HutchMed Warrants [Member]
Equity [Line Items]
Warrants to purchase shares of common stock				5,653,000
Warrants to exercise common stock				$ 11.50
Number of shares purchasable reduced upon condition				2,826,500
Warrant liability				$ 13,000,000.0
RPI Purchase Agreement [Member]
Equity [Line Items]
Proceeds from issuance of common stock, net of commissions					$ 50,000,000.0
Warrants to exercise common stock		$ 20.00				$ 20.00
RPI Purchase Agreement [Member] | Maximum [Member]
Equity [Line Items]
Warrants to purchase shares of common stock		2,500,000				2,500,000
Series A Convertible Preferred Stock [Member]
Equity [Line Items]
Preferred stock, shares outstanding							337,800		337,800		337,800
Preferred stock, voting rights							Shares of Series A Preferred Stock will generally have no voting rights except as required by law and except that the consent of the holders of a majority of the outstanding shares of Series A Preferred Stock will be required to amend the terms of the Series A Preferred Stock or take certain other actions with respect to the Series A Preferred Stock.
Liquidation preference per share							$ 0.001		$ 0.001
Percentage of conversion restriction upon holder of convertible preferred stock shares							9.99%
Conversion of stock notice period							61 days
Number of common shares convertible for each share of convertible preferred stock							10		10
Preferred Stock [Member]
Equity [Line Items]
Issuance of Series A Convertible Preferred Stock, net of commissions and beneficial conversion charge, Shares					12,200
ATM Sale Agreement [Member]
Equity [Line Items]
Common stock shares issued							1,473,158		5,314,135
Sale of common stock, price per share							$ 1.82		$ 1.82
Sale of stock, consideration received on transaction							$ 2,400,000
Proceeds from issuance of common stock, net of commissions							18,300,000
Issuance costs							600,000
IPO [Member]
Equity [Line Items]
Common stock shares issued			56,666,667
Sale of common stock, price per share			$ 1.50
Sale of stock, consideration received on transaction			$ 79,500,000
Issuance of common stock, Value							$ 937,300,000
Jefferies LLC [Member] | ATM Sale Agreement [Member]
Equity [Line Items]
Company common stock aggregate offering price	$ 200,000,000.0
Commission proceeds from sale	3.00%
Common Stock [Member]
Equity [Line Items]
Common stock, shares authorized							225,000,000		225,000,000		150,000,000
Issuance of common stock upon exercise of stock options, Share							58,139,825
Issuance of common stock, Value							$ 6,000
Issuance of Series A Convertible Preferred Stock, net of commissions and beneficial conversion charge, Shares					122,000
Additional Paid-In Capital [Member]
Equity [Line Items]
Issuance of common stock, Value							$ 81,822,000
Additional Paid-In Capital [Member] | RPI Purchase Agreement [Member]
Equity [Line Items]
Proceeds from sale of equity securities fair value						$ 8,400